libssh2

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#!/bin/sh
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# Copyright (C) The libssh2 project and its contributors.
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# SPDX-License-Identifier: BSD-3-Clause
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#
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# Script to build release-archives with. Note that this requires a checkout
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# from git and you should first run 'autoreconf -fi' and './configure'.
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#
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set -eu
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export LC_ALL=C
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export TZ=UTC
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version="${1:-}"
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if [ -z "$version" ]; then
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  echo "Specify a version number!"
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  exit
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fi
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if [ "only" = "${2:-}" ]; then
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  echo "Setup version number only!"
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  only=1
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else
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  only=
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fi
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libversion="$version"
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major=$(echo "$libversion" | cut -d. -f1 | sed -e "s/[^0-9]//g")
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minor=$(echo "$libversion" | cut -d. -f2 | sed -e "s/[^0-9]//g")
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patch=$(echo "$libversion" | cut -d. -f3 | cut -d- -f1 | sed -e "s/[^0-9]//g")
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numeric="$(printf "%02x%02x%02x\n" "$major" "$minor" "$patch")"
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HEADER=include/libssh2.h
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if test -z "$only"; then
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  ext=".dist"
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  # when not setting up version numbers locally
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  for a in $HEADER; do
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    cp "$a" "$a$ext"
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  done
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  HEADER="$HEADER$ext"
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fi
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# requires a date command that knows + for format and -d for date input
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timestamp=${SOURCE_DATE_EPOCH:-$(date +"%s")}
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datestamp=$(date -d "@$timestamp")
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filestamp=$(date -d "@$timestamp" +"%Y%m%d%H%M.%S")
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# Replace version number in header file:
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sed -i.bak \
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  -e "s/^#define LIBSSH2_VERSION .*/#define LIBSSH2_VERSION \"$libversion\"/g" \
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  -e "s/^#define LIBSSH2_VERSION_NUM .*/#define LIBSSH2_VERSION_NUM 0x$numeric/g" \
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  -e "s/^#define LIBSSH2_VERSION_MAJOR .*/#define LIBSSH2_VERSION_MAJOR $major/g" \
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  -e "s/^#define LIBSSH2_VERSION_MINOR .*/#define LIBSSH2_VERSION_MINOR $minor/g" \
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  -e "s/^#define LIBSSH2_VERSION_PATCH .*/#define LIBSSH2_VERSION_PATCH $patch/g" \
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  -e "s/^#define LIBSSH2_TIMESTAMP .*/#define LIBSSH2_TIMESTAMP \"$datestamp\"/g" \
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  "$HEADER"
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rm -f "$HEADER.bak"
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if test -n "$only"; then
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  # done!
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  exit
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fi
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echo "libssh2 version $libversion"
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echo "libssh2 numerical $numeric"
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echo "datestamp $datestamp"
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findprog() {
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  file="$1"
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  for part in $(echo "$PATH" | tr ':' ' '); do
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    path="$part/$file"
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    if [ -x "$path" ]; then
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      # there it is!
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      return 1
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    fi
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  done
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  # no such executable
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  return 0
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}
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############################################################################
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#
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# automake is needed to run to make a non-GNU Makefile.in if Makefile.am has
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# been modified.
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#
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if { findprog automake >/dev/null 2>/dev/null; } then
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  echo "- Could not find or run automake, I hope you know what you are doing!"
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else
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  echo "Runs automake --include-deps"
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  automake --include-deps Makefile >/dev/null
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fi
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############################################################################
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#
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# Generate the changelog
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#
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echo "generate NEWS"
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git log --pretty=fuller --no-color --date=short --decorate=full -1000 | ./git2news.pl > NEWS.dist
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############################################################################
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#
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# Now run make dist to generate a tar.gz archive
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#
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echo "make dist"
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targz="libssh2-$version.tar.gz"
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make -s dist "VERSION=$version"
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res=$?
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if test "$res" != 0; then
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  echo "make dist failed"
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  exit 2
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fi
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retar() {
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  tempdir=$1
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  rm -rf "$tempdir"
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  mkdir "$tempdir"
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  cd "$tempdir"
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  gzip -dc "../$targz" | tar -xf -
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  find libssh2-* -depth -exec touch -c -t "$filestamp" '{}' +
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  tar --create --format=ustar --owner=0 --group=0 --numeric-owner --sort=name libssh2-* | gzip --best --no-name > out.tar.gz
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  mv out.tar.gz ../
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  cd ..
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  rm -rf "$tempdir"
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}
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retar ".tarbuild"
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echo "replace $targz with out.tar.gz"
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mv out.tar.gz "$targz"
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############################################################################
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#
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# Now make a bz2 archive from the tar.gz original
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#
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bzip2="libssh2-$version.tar.bz2"
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echo "Generating $bzip2"
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gzip -dc "$targz" | bzip2 --best > "$bzip2"
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############################################################################
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#
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# Now make an xz archive from the tar.gz original
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#
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xz="libssh2-$version.tar.xz"
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echo "Generating $xz"
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gzip -dc "$targz" | xz -6e - > "$xz"
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############################################################################
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#
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# Now make a zip archive from the tar.gz original
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#
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makezip() {
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  rm -rf "$tempdir"
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  mkdir "$tempdir"
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  cd "$tempdir"
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  gzip -dc "../$targz" | tar -xf -
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  find . | sort | zip -9 -X "$zip" -@ >/dev/null
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  mv "$zip" ../
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  cd ..
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  rm -rf "$tempdir"
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}
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zip="libssh2-$version.zip"
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echo "Generating $zip"
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tempdir=".builddir"
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makezip
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# Set deterministic timestamp
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touch -c -t "$filestamp" "$targz" "$bzip2" "$xz" "$zip"
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echo "------------------"
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echo "maketgz report:"
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echo ""
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ls -l "$targz" "$bzip2" "$xz" "$zip"
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sha256sum "$targz" "$bzip2" "$xz" "$zip"
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echo "Run this:"
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echo "gpg -b -a '$targz' && gpg -b -a '$bzip2' && gpg -b -a '$xz' && gpg -b -a '$zip'"
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